chore(deps): bump immutable from 3.8.2 to 4.3.6

Bumps [immutable](https://github.com/immutable-js/immutable-js) from 3.8.2 to 4.3.6.
- [Release notes](https://github.com/immutable-js/immutable-js/releases)
- [Changelog](https://github.com/immutable-js/immutable-js/blob/main/CHANGELOG.md)
- [Commits](immutable-js/immutable-js@v3.8.2...v4.3.6)

---
updated-dependencies:
- dependency-name: immutable
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -79,7 +79,7 @@
     "deep-extend": "0.6.0",
     "dompurify": "=3.1.2",
     "ieee754": "^1.2.1",
-    "immutable": "^3.x.x",
+    "immutable": "^4.x.x",
     "js-file-download": "^0.4.12",
     "js-yaml": "=4.1.0",
     "lodash": "^4.17.21",